This large-capacity pack is full-featured and ready for outdoor extreme activities, making it ideal for mountain riders and back country boondockers. It boasts 2600 cubic inches of storage (20"H x 12"W), with a panel-load main compartment and a smaller compartment, as well as an outside mesh pocket. Includes mountaineering-style removable/adjustable shovel handle holder (works with all shovels); carry a shovel blade securely either inside or outside the pack. Room inside for an avalanche probe. This pack boasts a quick-release ultra-fit shoulder strap system which allows freedom of movement for all-day comfort, plus a dual-pull sternum strap which includes a built-in whistle. Features daisy chains and D-rings, ripstop ballistic nylon construction with double bottom for strength, full reflective stretch-cord front, #8 and #10 YKK® zippers, and beefy Duraflex® and ITW Nexus™ hardware. Two mesh outside bottle/accessory pockets. Padded plastic frame sheet for your back. Can fit comfortably over a chest protector or Tekvest®-style protective gear.